Transform the polar equation to an equation in rectangular coordinates. Then identify and graph the equation.r = 4 cos ?
A.
x2 + (y + 2)2 = 4; circle, radius 2,
center at (0, -2) in rectangular coordinates
B.
(x - 2)2 + y2 = 4; circle, radius 2,
center at (2, 0) in rectangular coordinates
C.
(x + 2)2 + y2 = 4; circle, radius 2,
center at (-2, 0) in rectangular coordinates
D.
x2 + (y - 2)2 = 4; circle, radius 2,
center at (0, 2) in rectangular coordinates
Answer: B
You might also like to view...
Find the volume of the solid generated by revolving the region about the given line.The region bounded by the line , by the curve
, by the line
, and by the line
about the line
.
A. 24? B. 48? - 32 C. 24? - 64 D. 8?
Solve.10n - 6 = 34
A. 34 B. 9 C. 4 D. 30
Use the graph of y = to solve the equation
where
and y2 represent linear functions.
A. {4} B. {2} C. {5} D. {0}
Solve the problem.The radiator in a certain make of car needs to contain of 40% antifreeze. The radiator now contains
of 20% antifreeze. How many liters of this solution must be drained and replaced with 100% antifreeze to get the desired strength?
A. 16 L B. 20 L C. 10.0 L D. 13.3 L